Has anyone heard of or had TSA test breastmilk when traveling?

I have to go to Chicago for work in a few weeks, I’ll be gone for 2 days so I’ll be bringing back at least 8 bottles of expressed milk. Someone said TSA will open the bottles and stick a stick in them to test them? Is this true? Does this effect the milk?

Have you heard of the milk stork? Have you used it? Is it worth the cost?

Would you pump and dump?

** found an app. Mamava. That helps you find places to pump or nurse in private. Especially in airports. Anyone done this before? Do you ask information if there’s anyone using it or is it luck of timing?